Valve



Nov. 25, 1930. SJKNEASSL JR- VALVE Filed Dec. 5, 1928 4 Sheets-Sheet 1 INVENTOR Nov; 25, 1930. s. KNEASS. JR

VALVE Filed Dec. 5. 1928 4 Sheets-Sheet 2 @&

4 Shets-Sheet 3 s. KNEASS. JR.

VALVE Filed Dec.

" Nov. 35, 1930.

Nov. 25, 1930. s. KNEASS, JR" 7 1,782,970

VALVE Filed Dec. 5, 1928 4 Sheets-Sheet 4 V w 5 a 6 xxxma -(UNITED-STATES t rmed Nov; 2s 1930 1 PATENT F ,srnroxnnnnxnnhss, 33., on s wIo nEY; PsmsYsvsmA, Assieitoa To oosTE IQLo A pficau ihi areceiver 5,1923. Serial naez'aeia t J'The present invention relates broadlyto theart-of'fiuid control, and more particularly to an improved valvestructure for this purpose especiallytdesigned for thefhandling' 5 of raw producer gases and similar fluids, al-

thoughthe utility of theinventionfis not {to which the valve is placed T1 the present time, and particularlywithuproducergases, thesolid content is'such that" the valves and lines used for controlling the flow thereof have a depo'sit formed therein. a This 1 depositis particularly objectionable when it formsin proxirnity to the valve inasmuch as itlinter'feres with the proper flow with a predetermined valvesettinglf It isone of theobjectsofthe present invention ito provide a valve structure of such Qnature thatthe building up of deposits in proximity a to the working parts. thereof :is r minimized.

dium being handled is expedited, and the release andjdeposit offorei'gn matter will' be prevented. I

In the accompanying drawings "I ihave shownfor purposes of illustration only preferred embodiments oif the present inven- ;ti0n,fit being understood that changes in the ;c0nstruction and operationof the parts therein illustrated may be made withou t departing either fromthel spirit of the invention or the scope of the appended claims.

- Inthe drawings, Figurel is-a vertical sectional viewthrough a valveconstructed 1n accordance with the present invention,

the line II II of Figure direction of the arrows,"

Figure 3 is a vertical sectional view along the line 111%11101" Figure 2, looking in the 45 direction ofthe arrows, and" v Figure 4 is a view similar to Figurei 1, l illustrating a modified'embodiment of the invention. a

In accordance w th the present invention v i v. ,1 Y cleaning device 6. Ano herobject of the present invention is A to provide avalve having'an outlet of such :5 nature thatfthe flow therethrou'gh of the me- 0 there maybe provided a valve casingfl of v Lvii any desired constructionhaving a seat '3 acent the inlet thereof having a special outlet connection 4.1 h t ,r a t I Extendingthroughfthe casing is a sleeve 5 having secured to its ,lowerfendacleaning ENGINEERING COMPANY, on-hmnrrsisnneu, PENNSYLVANIA, A conPo ATIo or device 6, ,herein illustrated as comprising a "pair of diverging arms "with their lower endsfshapedto provide scraper blades? jco operatingmwith the uppersurface-of the seat3. y a F a "Extending throughthe sleeve 5 is a stem 8, carrying atits' lower end a va-lve 9cooperating jwith the"wall the inletflsiiry rounded by the seat 3 andofsuch vdiam eter as to effectively cooperate lwith the inner edges 10 0f the cleaning device 6. By reason of this construction willbe apparent that the valve 9 maybe moved from itsclosed posit-ion illustratedin full lines in Figure 1 to its. open position indicatedin dottedlines.

in this figure Without interference from the the, casing 2 is a ."yoke carryinga will.

:Mounted abovethe casing 2 and between the arms of the yoke ll is a secondhand ;Wheel 15. secured to the upper. end of the sleeve 8, and effective for rotating such sleeve. t

With the construction described, it will be apparent thatfrOtatioh of the hand-wheel is effective through the scraper blades fof the/cleaning device for removing any Figure 2 is a transverse sectional view on I .7, oo ng'i x f foreign material which may be accumulated on the seat surrounding the valve 9, *With J the valve in any predetermined open or par tially open positiomsuch for example as that indicated in dotted line's in Figure 1, the r0 tati'on .ofthehand' wheel 15 will not only be eliective for cleaning foreign material from the s'eat3 butwill also be effective for scrap ing theperipheral edge of the valveitself.

In like manner, each movement o fthe valve from closed to'open position,"or vice versa,

will bring the peripheral edges of the valve into contact with the edges 10 and thereby serve to clean the valve simultaneously with each operating movement thereof.

Cooperating with the casing and positioned intermediate the same and outlet connection 4-. is a removable flow plate 16 of such construction as to provide a constricted orifice 17 in axial .alinement with the outlet 4:, and a hollow chamber 18 surrounding such orifice. The flow plate is of such construc tion also as to provide a connection 19 adapt ed to cooperate with a suitable source of fluid under pressure, such, for example, as steam or air.

Formed in the casing 2 in such manner as to surround the sleeve 5 and the valve stem 8, is a second fluid pressure chamber 20 pro vided with a connection 21 to the chamber 18 in the flow plate. In this manner fluid under pressure is permitted to pass from the flow plate through the connection 21 into the chamber 20, and thence, by way of openings 22, into the annular space '23 intermediate the sleeve 5 and the stem 8. Thebearing 24 at the lowerend of the sleeve 5, while having a fairly tight fit with the stem 8, does nothave a fit of such nature as to preclude the passage of fluid therethrough. It will thus be apparent that during the operation of the valve fluid under pressure will continuously flow between the valve stem and sleeve and tend to prevent the accumulation of any for eign matter therebetween.

The flow plate 16 is constructed in such manner as to provide a circumfere-ntia'lly extending slot 25 adapted to discharge in the general direction indicated by the arrows A thereby assisting flow from the interior of the valve casing through the outlet connection 4. Secured to the flow plate is a bent tube 26 having its discharge end 27 directly forwardly in the direction of discharge from the valve, and provided with an outlet 28 substantially in line with the axis of flow through the flow plate. Simultaneously with the discharge of fluid under pressure through the opening 25, fluid will be discharged through the outlet 28, thereby insuring a relatively high velocity such to preclude the deposit of foreign matter within the flow plate or the outlet connection.

It will be further noted that the flow plate and outlet connection are of such contour as to provide a flow passage of approximately Venturi shape, thereby insuring a maximum velocity at substantially the point of maximum in the flow plate. This again tends to prevent the settling of any solid matter from the fluid being handled until such time as its velocity shall have decreased and substantially normal pressure conditions again assumed.

In Figure 4 of the drawings there is illustrated a modified embodiment of the invention, in which parts corresponding to the parts already described are designated by the same reference characters having a prime affixed thereto. In this embodiment of the invention the seat 3 and the cooperating valve 9 are of such shape as to provide a tight seating valve, the valve being adapted to engage the seatupon upward movement of-the valve stem 8 when rotated by the hand-wheel 14:. In this figure the parts are illustrated in full lines-in the positions "they occupy with the valve closed, the correspond ing positions of the, parts with the valve opened being shown in dotted lines.

The sleeve 5 is threaded at its lower end to .co-operate with a coupling 29, the opposite end of which carries a guiding gland 30. Secured to the sleeve above the'coupling 29 is a hub 30 having arms 31 projecting out-- wardly and downwardly therefrom. Each of these arms has a pivotal connection 32 to the upper end of a link 38. The lower ends of the links 33 in turn have pivotal connections 34 with the upper ends of scraper blades 35 adapted normally to occupy the position indicated in full lines. 1

lVhen the valve is moved to open position by the operation of the hand-wheel 1 1, the hand-wheel 15, secured to the sleeve 5, may be pushed downwardly from its full line to its dotted line position, thereby moving the hub with its associated parts, including the scrapers .35, into the position indicated in dotted lines. At this time the outer portions 3.6 of the scrapers engage the valve seat 3 while the portions 37 engage the outer periphery of the valve. In this position the hand-wheel 15' may be rotated so as to scrape the seat and valve simultaneously and remove" therefrom any deposit of foreign material.

Upon the conclusion of the scraping operation the hand-wheel 15 may be returned to its full line .positionto permit subsequent closing of the valve. If for anyreason the hand-wheel 15 is not completely restored to its full line position, it will be apparent that upon upward movement of the valve 9 it will engage the lower ends of the scrapers 35 and effect an upward movement of the sleeve 5 and its associated parts simultaneously with the upward movement of the valve.

Certain advantages of the present invention arise from the provision of a valve structure of suchnature as to insure a. rapid flow therethrough of fluid being controlled in such manner as to minimize the possibility of solid precipitation.

7 Another advantage of the present invention arises from the provision of a valve with means associated therewith and effective for cleaning the valve and its seat to eflect the removal therefrom of any accumulated matter.

Still other advantages of the invention mally occnpying apositionentirely above the arise from the provision. of connections for supplying fluid under pressure to certain of r the valve parts during the operationjthereoi in such manner as to facilitateflowand efiect a cleaning ofthe valve parts subjected to such cleaning fluid. 7

lyThe combination withra valve casing having a seat, of a valve adapted toicooperate with saidseat, and cleaning means norplane of said seat for cleaning the seating face of said valve.

i ate .Wltli said seat, and lcleanlngmeans nor- 2. The Combination with a valve casing having a seat, of a'valve adapted to c0oper mally occupying a position entirely above the" 6 plane of said seat for cleaning the seating face ofsaid valve and saidseat;

3. The combination with a valve casing having a seat, of a valve adapted to cooperate therewith, operating connections for said.

valve, cleaning means for said valve, and other operating connections for saldcleaning means extending substantially parallel to said first mentioned operating connections.

4. The combination with a valve casing having a seat, of a valve adapted tp cooper atetherewith, operating connections for said valve,'cleaningmeans for saidva'lve, and opcrating connections for said cleaning: means,

said lastmentioned operating connections be-.

ing disposed in concentric relationship. to the operating'connections for the valve.

5. The combination with a valve casing having a s'eat,'of a valve adaptedto' cooperate therewith, avalve stem secured to said valve and projecting upwardly therefrom, a

. sleeve surrounding said stem, cleaning means operatively connected to said sleeve, and means'ffor effecting individual operation at will of said stem or said sleeve. v 6. The combination with a valve casing having a seat, 0159. valve adapted to cooperate therewith, a valve stem secured to said valve and projecting upwardly therefrom, asleeve f surroundingsaid stem, cleaning means operatively connected to saidsleeve, and means for efl'ectin operation at will of either said stem or sai sleeve, said means comprising a handwheel for each of said parts.

7*. The combination with a valve casing having a seat, of a valve ad'aptedto cooperate therewith, and cleaning means for said valve and seat, said cleaning means comprising scrapers having different portions thereof 9. The combination with a valvecasing,v

of a valve, a stem for operating said valve, a sleeve surrounding said stem, cleanlng' means carried by said sleeve, and means for supplying fluid under pressure between said stem and sleeve.

10. The-combination with valve and its seat, of cleaning means comprising a scraper arm, and means for operating said scraper arm to simultaneously clean said valve and seat. l

11; The combination with avalvecasing,

ofa valve including avalve "stem for controlling flow throughthe casing, cleaning means for sa d valve, operating connections operating. said cleaning means, a flow plate n v i includinga sleeve surround ng sa d stem for cooperatingwith said casing, a fluid delivery connection between said flow plate and the space'between said sleeve and stein, and means for supplying fluid under pressure to said flow plate and said fluid deliveryconnec- 12. The combination with a valve casing, e of a valve including a stem for controllingflow through said casing, cleaning means for said valve, operating connections forsaid cleaning means including a sleeve surround- 3 ing said stem, a flow plate cooperating with a said casing, and connections for supplying fluid under pressure tosaid flow plate and to the space between said stem and said sleeve,

adapted to cooperate respectively with the ,valve and seat.

a 8. The combination with a valve casing, of a valve,

ing, and-means for supplying fluid under pressure tosaid outlet connection in the di. rection of flow of fluid therethrough from the valve. i

operating means for said valve, a Ventur1 shapedoutlet connection for said cas- 1 0 In testimonywhereof I have hereunto set Q i 

